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1、INTERNATIONAL STANDARD ISO 23600 First edition 2007-11-01 Reference number ISO 23600:2007(E) ISO 2007 Assistive products for persons with vision impairments and persons with vision and hearing impairments Acoustic and tactile signals for pedestrian traffic lights Aides fonctionnelles pour personnes
2、ayant des dficiences visuelles et/ou des dficiences visuelles et auditives Signaux acoustiques et tactiles pour feux de circulation Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/
3、19/2007 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 23600:2007(E) ii ISO 2007 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be ed
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6、odies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by an
7、y means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail
8、copyrightiso.org Web www.iso.org Published in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/19/2007 05:34:31 MSTNo reproduction or networking permitted without licens
9、e from IHS -,-,- ISO 23600:2007(E) ISO 2007 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technica
10、l committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely wit
11、h the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft Inter
12、national Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may
13、 be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 23600 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability. Copyright International Organization for Standardization Provided by IHS under
14、license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/19/2007 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 23600:2007(E) iv ISO 2007 All rights reserved Introduction The aim of this International Standard is to specify the
15、requirements for acoustic and tactile signals for pedestrian traffic lights, for persons with vision impairments and persons with vision and hearing impairments. Persons with vision impairments and persons with vision and hearing impairments travelling alone use a number of techniques and cues in th
16、e environment to commence a safe street crossing. Environmental sounds and cues provide timing and directional information. At an intersection that is equipped with pedestrian lights, acoustic and tactile signals provide equivalent information to persons with vision impairments and persons with visi
17、on and hearing impairments. At an intersection that is not equipped with acoustic and tactile signals, persons with vision impairments are forced to use the sounds of vehicular traffic in order to estimate the time to start crossing a street and to determine their direction of travel. However, the s
18、ounds of vehicular traffic are not always available and often insufficient. In the case of persons with vision and hearing impairments, the majority of these people have to rely on assistance. The installation of acoustic and tactile signals for pedestrian traffic lights significantly improves the a
19、bility of persons with vision impairments and persons with vision and hearing impairments to travel safely and independently. Acoustic and tactile signals for pedestrian traffic lights provide persons with vision impairments and persons with vision and hearing impairments with information to know pr
20、ecisely when the walk initiation signal has been activated. They can also provide directional information and the geometry of the intersection. The specifications and installation methods of acoustic and tactile signals for pedestrian traffic lights have been different from country to country. This
21、International Standard sets out the requirements, technical specifications and performance criteria for acoustic and tactile signals for pedestrian traffic lights. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=
22、Wing, Bernie Not for Resale, 11/19/2007 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARDISO 23600:2007(E) ISO 2007 All rights reserved 1 Assistive products for persons with vision impairments and persons with vision and hearing impairments Aco
23、ustic and tactile signals for pedestrian traffic lights 1Scope This International Standard specifies requirements for acoustic and tactile signals for pedestrian traffic lights to assist in safe and independent mobility of persons with vision impairments and persons with vision and hearing impairmen
24、ts. It is applicable to design, installation and operation of acoustic and tactile signals for pedestrian traffic lights. It is not applicable to electromagnetic compatibility (EMC), electrical safety or operating conditions. NOTEOperating conditions can be affected by climate, shock, vibrations or
25、other environmental factors. 2Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 persons with vision impairments persons who are blind or who have low vision 2.2 persons with vision and hearing impairments persons who are blind or who have low vis
26、ion in combination with deafness or hearing loss 2.3 acoustic orientation signal sound used to enable persons with vision impairments to recognise the presence of and to locate a push-button box and/or pedestrian crosswalk 2.4 walk initiation period period when the display indicates that pedestrians
27、 may begin their crossing in the pedestrian crosswalk 2.5 prohibited walk initiation period period when the display indicates that pedestrians may not enter the pedestrian crosswalk NOTEThe prohibited walk initiation period consists of two parts: the period following the walk initiation period when
28、pedestrians in the pedestrian crosswalk may continue going out of the pedestrian crosswalk and the period when pedestrians are prohibited to enter the pedestrian crosswalk. 2.6 acoustic walk initiation signal sound used to indicate to persons with vision impairments the walk initiation period Copyri
29、ght International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/19/2007 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 23600:2007(E) 2 ISO 2007 All rights reserve
30、d 2.7 tactile walk initiation signal vibrating or rotating device to indicate the walk initiation period to persons with vision impairments and persons with vision and hearing impairments 3General 3.1Acoustic signals An acoustic signal for persons with vision impairments and persons with vision and
31、hearing impairments can indicate: a)the presence and location of a push button; b)the location of a pedestrian crosswalk; c)the walk initiation period; d)the direction of the pedestrian crosswalk; e)the prohibited walk initiation period. 3.2Tactile signals Tactile signals for persons with vision imp
32、airments and persons with vision and hearing impairments can indicate the walk initiation period and the direction of the pedestrian crosswalk. 3.3Activation of acoustic and tactile signals Acoustic and tactile signals can be automatically controlled or activated by a push button or a remote control
33、 device carried by an individual. When acoustic and tactile signals are activated by a push button, activation should be indicated by tactile and/or acoustic feedback. It is important that the tactile and acoustic feedback to button activation be distinctly different from tactile and acoustic walk i
34、nitiation signals. 3.4Additional features Tactile and/or acoustic features can provide: a)the characteristics of a pedestrian crosswalk; b)the shape of an intersection; c)the name of the intersection; d)the name of the street to be crossed. 4Requirements 4.1General Acoustic and tactile signals shoul
35、d be used in combination to meet the needs of persons with vision impairments and persons with vision and hearing impairments. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/19/20
36、07 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 23600:2007(E) ISO 2007 All rights reserved 3 4.2Acoustic orientation signal 4.2.1Uses of acoustic orientation signal An acoustic orientation signal is used to indicate the location of a pedestrian crosswalk, an
37、d the presence and location of a push button. The acoustic orientation signal may also be used to indicate the prohibited walk initiation period. 4.2.2Repetition rate The repetition rate of the acoustic orientation signal should be . The repetition rate shall be between and . If the acoustic orienta
38、tion signal and acoustic walk initiation signal consist of the same sounds, the ratio between the repetition rate of the orientation signal shall be equal to or less than 0,2 times the repetition rate of the walk initiation signal. 4.2.3Audible distance The acoustic orientation signal should be audi
39、ble at minimum of and maximum of from the sound source, unless an adjacent building is closer. 4.2.4Sound-pressure level The sound-pressure level of the acoustic orientation signal should be between and . The sound- pressure level of the acoustic orientation signal should be above ambient noise leve
40、l. The sound-pressure level of the acoustic orientation signal should not exceed above ambient noise level. 4.3Acoustic walk initiation signal 4.3.1Common requirements for acoustic walk initiation signal 4.3.1.1Duration The acoustic walk initiation signal should remain actuated during the entire wal
41、k initiation period. 4.3.1.2Non-ambiguous acoustic signal An acoustic walk initiation signal shall give non-ambiguous information regarding the pedestrian crosswalk to which it applies. This can be achieved by one or more of the following: a)placement of the acoustic and tactile signal within the wi
42、dth of the pedestrian crosswalk; b)careful control of volume of acoustic signal; c)use of a tactile signal; d)speech message. 4.3.1.3Frequency range 4.3.1.3.1Multiple frequency sound The acoustic walk initiation signal should be composed of multiple frequencies. The multiple frequency sound should i
43、nclude both high and low frequencies. The principal frequencies shall be between and . NOTE 1Sounds having multiple peaks between and are useful for detection and localization. 1,0 Hz 0,5 Hz1,2 Hz 1 m5 m 30 dB90 dB 5 dB 10 dB 300 Hz3 500 Hz 500 Hz2 500 Hz Copyright International Organization for Sta
44、ndardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 11/19/2007 05:34:31 MSTNo reproduction or networking permitted without license from IHS -,-,- ISO 23600:2007(E) 4 ISO 2007 All rights reserved NOTE 2Sounds having a central freque
45、ncy above can be difficult to detect for persons with an age-related hearing loss. NOTE 3In order for persons with age-related hearing loss to detect multiple frequency signals, it is necessary to have sufficient energy in the band between and . 4.3.1.3.2Single frequency sound The frequency of a sin
46、gle frequency sound should be between and . 4.3.2Requirements for singly- and simultaneously-generated acoustic walk initiation signals 4.3.2.1Repetition rate The repetition rate of the intermittent sound of the acoustic walk initiation signal shall be greater than . When sounds other than tones are
47、 used, the repetition rate for the system shall be more than . EXAMPLESpeech or bird sounds are examples of sounds that are not tones. 4.3.2.2Audible distance The acoustic walk initiation signal should be audible at a minimum of from the sound source. If the acoustic walk initiation signal is used t
48、o indicate the direction of the pedestrian crosswalk, the sound of each sound emitter should be detectable for a minimum of two-thirds the length of the pedestrian crosswalk. 4.3.2.3Sound-pressure level The sound-pressure level of acoustic walk initiation signals should be automatically adjusted according to ambient sound-pressure level. The sound-pressure level of the acoustic walk initiation signal should be between and . The sound-pressure level of acoustic walk initiation signal should be above ambient noise level. The acoustic walk initiat